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All Journal Jurnal Energi dan Teknologi Manufaktur Duta Abdimas: Jurnal Pengabdian Masyarakat
Wachid Yahya
Unknown Affiliation
Automotive Engineering Computer Science & IT Economics, Econometrics & Finance Energy Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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KAJI EKSPERIMEN MASSA REFERIGERANT TERHADAP OPTIMALISASI FUNGSI AC PADA KENDARAAN INOVA DIESEL 2008 Nike Nur Farida; Wachid Yahya; Khaeratul Mukarramah
Jurnal Energi dan Teknologi Manufaktur Vol 4 No 02 (2021)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v4i02.104

Abstract

One of the functions of the vehicle air conditioner is to provide thermal comfort in the cabin space. Thermal Comfort can provide benefits such as reducing driver fatigue and increasing driving efficiency and safety, so it is important that the temperature of the vehicle is in accordance with human thermal comfort (22.8-26oC). The purpose of this study was to see how much volume and pressure the car air conditioner had in order to get optimal thermal comfort by varying the volume of the refrigerant in the air conditioner and recording the pressure, temperature in the condenser, evaporator and cabin space. The test equipment in this study was a 2008 Toyota Innova Diesel with refrigerant R 134a with a volume variation of 600 grams, 700 grams, 800 grams, 900 grams, 1000 grams and 1,100 grams. The results showed that the more refrigerant volume will make the low pressure and high pressure in the AC system rise. Optimal low pressure (1.5 bar) and optimal high pressure (15.1 bar) were obtained at a refrigerant volume of 700 grams. The relationship between the refrigerant mass and the temperature in the evaporator line has a tendency if the volume of refrigerant plus the temperature in the evaporator line and the cabin will decrease to a certain point the temperature will tend to rise. The pattern which includes the addition of refrigerant mass will reach the optimum cabin temperature (achieve thermal comfort), and then decrease (the temperature will increase). The lowest temperature achieved in the cabin (24.6oC) was at a refrigerant volume of 700 ml.
Pendampingan Digitalisasi bagi UMKM Kuliner Soloraya Anditha Sari Indarko; Wahyu Tri Hastiningsih; Wachid Yahya
Duta Abdimas Vol. 5 No. 1 (2026): Duta Abdimas: Jurnal Pengabdian Masyarakat
Publisher : LPPM Universitas Duta Bangsa Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47701/eymkv775

Abstract

Kegiatan pengabdian kepada masyarakat dilaksanaakn sebagai upaya menjawab permasalahan rendahnya pemahaman dan penerapan teknologi digital dalam pengelolaan usaha kuliner lokal. Banyak pelaku UMKM di sektor ini masih mengandalkan metode konvensional dalam promosi dan penjualan sehingga kurang optimal menjangkau pasar yang lebih luas. Tujuan kegiatan ini adalah meningkatkan literasi digital dan kemampuan pemasaran daring pelaku UMKM kuliner melalui pelatihan , pendampingan dan implementasi langsung strategi digitalisasi. Metode yang digunakan meliputi observasi awal , pendampingan ,praktik pembuatan akun pada platform e-commerce,optimalisasi media sosial, serta evaluasi melalui pra test dan post test untuk mengukur peningkatan kompetensi peserta.Hasil kegiatan menunjukkan adanya peningkatan signifikan dalam pemahaman peserta terhadap pentingnya digital marketing,kemampuan mengelola konten promosi, serta pemanfaatan platform digital sebagai media penjualan. Selain itu, sebagian besar UMKM peserta berhasil mengaktifkan toko online dan mulai mengintegrasikan sistem peningkatan komeptensi peserta. Hasil kegiatan menunjukkan adanya peningkatan signifikan dalam pemahaman peserta terhadapnya pentingnya digital marketing,kemampuan mengelola konten promosi serta pemanfaatan platform digital sebagai media penjualan. Implikasi dari kegiatan ini menunjukkan bahwa pendampingan terstruktur dan berkelanjutan berperan penting dalam mempercepat proses transofrmasi digital UMKM, sekaligus memperkuat daya saing sektor kuiner lokal di era ekonomi digital
Co-Authors Anditha Sari Indarko Mukarramah, St Khaeratul Nike Nur Farida Wahyu Tri Hastiningsih